e7893fae75b88ea672f0ef5ce3f87423e858ce1ecac31dce9384264a957e065f

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27-03-2024 04:24

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General

Target

2024-03-27_ff34845088e4c2104685d91636363d21_cryptolocker.exe
Size

62KB
MD5

ff34845088e4c2104685d91636363d21
SHA1

5fd6bd3adf18989082affb577f7906817091f44b
SHA256

e7893fae75b88ea672f0ef5ce3f87423e858ce1ecac31dce9384264a957e065f
SHA512

470a2238dbfd855739ec8e0aa3defb2f10b3f28c2cfc691395d170045ee00b6e378910361c80e5a9bd39ac641938187b0736f1e099dbeae71fa6b2667dc16416
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/xblzoa:X6a+SOtEvwDpjBrOP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001222b-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001222b-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1964	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1704	2024-03-27_ff34845088e4c2104685d91636363d21_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 1964	1704	2024-03-27_ff34845088e4c2104685d91636363d21_cryptolocker.exe	28
PID 1704 wrote to memory of 1964	1704	2024-03-27_ff34845088e4c2104685d91636363d21_cryptolocker.exe	28
PID 1704 wrote to memory of 1964	1704	2024-03-27_ff34845088e4c2104685d91636363d21_cryptolocker.exe	28
PID 1704 wrote to memory of 1964	1704	2024-03-27_ff34845088e4c2104685d91636363d21_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-27_ff34845088e4c2104685d91636363d21_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_ff34845088e4c2104685d91636363d21_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1964

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
63KB

MD5
bfa4a55c2ac98457186e6e5b9e397d11

SHA1
4131afd27e58d11e4f8f7c797b2454d2a4b1c2e3

SHA256
e6e2c41b0decf54129311ce878ac1050c6ceac4a02c71975a97d6f77ae5444ef

SHA512
ea9a4235c3a0d0fc89e68d7e4300a4d6b8860da8b3690d48ce3925e853babdb45e7e39f93369fdb240bf4b6979b8228d3c3381f0c98f99bbf681a3356b34d9aa

Download Submit
memory/1704-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1704-1-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/1704-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1964-15-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/1964-17-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download